[L57] 補修・補強（構造）Ⅲ／新材料・新工法（構造）Ⅰ

[L2239] A STUDY ON SOFT STORY RC FRAME STRENGTENED WITH BUCKLING RESTRAINED BRACE

中野 友裕¹,Amnart KHAMPANIT²,Sutat LEELATAVIWAT²,Chatree NJAMSANJEIM³ (1.東海大学,2.King Mongkut’s University of Technology Thonburi,3.Rambhai Barni Rajabhat University)

キーワード：低靱性RCフレーム,座屈拘束ブレース,鋼板巻立,すべり回転

Cyclic tests of a soft story RC frame structure and their analyses were carried out. The test specimens were RC frame with infill wall, RC bare frame with steel jackets, and RC frame with buckling restrained braces (BRBs). The hysteretic loops of the specimen with BRBs were very stable with almost no pinching in the response. Though the results indicated that BRBs significantly increased the stiffness and lateral force capacity of the frame, where columns of the RC frame are slender, the lateral deformation capacity of the frame depends on the reinforcement slip at the lap splices.
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